Please refer to Assignments Class 11 Chemistry Chemical Bonding and Molecular Structure Chapter 4 with solved questions and answers. We have provided Class 11 Chemistry Assignments for all chapters on our website. These problems and solutions for Chapter 4 Chemical Bonding and Molecular Structure Class 11 Chemistry have been prepared as per the latest syllabus and books issued for the current academic year. Learn these solved important questions to get more marks in your class tests and examinations.
Chemical Bonding and Molecular Structure Assignments Class 11 Chemistry
Question. The state of hybridization of the central atom and the number of lone pairs over the central atom in POCl3 are
(a) sp, 0
(b) sp², 0
(c) sp³, 0
(d) dsp², 1
Answer
C
Question. In which of the following , the angle around the central atom is largest?
(a) CS2
(b) SF4
(c) SO2
(d) BBR3
Answer
B
Question. Dipole-induced dipole interactions are present in which of the following pairs?
(a) H2O and alcohol
(b) Cl2 and CCl4
(c) HCl and He atoms
(d) SiF4 and He atoms
Answer
C
Question. The number of types of bonds between two carbon atoms in calcium carbide is
(a) Two sigma, two pi
(b) One sigma, two pi
(c) One sigma, one pi
(d) Two sigma, one pi
Answer
B
Question. Which one of the following is paramagnetic?
(a) NO+
(b) CO
(c) O2–
(d) CN
Answer
C
Question. If the bond length and dipole moment of a diatomic molecule are 1.25 A and 1.0 D respectively, what is the percent ionic character of the bond?
(a) 10.66
(b) 12.33
(c) 16.66
(d) 19.33
Answer
C
Question. Based on VSEPR theory, the number of 90° F-Br-F angles in BrF5 is
(a) 0
(b) 2
(c) 4
(d) 8
Answer
A
Question. Which one of the following does not have sp² hybridised carbon?
(a) Acetone
(b) Acetic acid
(c) Acetonitrile
(d) Acetamide
Answer
C
Question. In which of the following substances, the intermolecular forces are hydrogen bonds?
(a) Hydrogen Chloride
(b) Hydrogen Sulphide
(c) Dry Ice
(d) Ice
Answer
D
Question. In allene (C3H4), the type(s) of hybridisation of the carbon atoms is (are)
(a) sp and sp³
(b) sp and sp²
(c) Only sp²
(d) sp² and sp³
Answer
B
